Application of Semi-dry Sulfuric Acid Production from Desulfurization Waste Liquid in Yunnan Coal
HU Yong
Abstract：This paper introduces the transformation and upgrading project of 2 million tons/year coking environmental protection relocation of Yunnan Coal Energy Co.,Ltd.,which adopts semi-dry acid production process,uses sulfur foam and desulfurization waste liquid through filtration and concentration treatment to prepare liquid sulfur and sulfur-containing waste liquid,and produces concentrated sulfuric acid through"3+1"double absorption process.The project includes six processes:pretreatment,incineration,purification,dry absorption,conversion and tail absorption.At the same time,the production of purified by-product dilute sulfuric acid should not exceed 0.2 tons per ton of concentrated sulfuric acid.
Keywords：desulfurization waste liquidkeywords semi-dry sulfuric acid productionsulfur foamliquid sulfursulfur-containing waste liquid
Publication Date：2024-06-20
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 65-67 )